CPU-GPU hybrid computing

GSS is the first and best sparse solver that supports CPU-GPU hybird computing.

GSS GPU computing is based on NVidia’s CUDA technology.
For detail of download and install CUDA toolkit, see https://developer.nvidia.com/cuda-zone .
The graphics cards should have compute capability 3.0 or higher.

We have found much room for improvement. We will continue improve the efficiency in later versions.